Lightning arrester on-line monitoring device

The utility model discloses a lightning arrester on-line monitoring device, which comprises a shell, an upper wiring terminal and a lower wiring terminal are arranged on the shell, and a leakage ampere meter and an action normality detection module are arranged in the shell; two ends of the leakage ammeter are electrically connected with the upper wiring terminal and the lower wiring terminal respectively; the normal action detection module comprises an automatic impulse voltage counter and an impulse voltage prompter; the impulse voltage prompter comprises a voice prompter and a light prompter; the impulse voltage automatic counter is electrically connected with the upper wiring end; and the impulse voltage prompter is electrically connected with the upper wiring terminal through the impulse voltage conduction circuit. The device verifies the reliability of the monitoring device through three effects of sound broadcast, light and counting, and is especially suitable for the conditionthat a high-voltage teste